Instructions: Saute onion in butter until tender. Stir in remaining ingredients except fillo. Cook and stir until thick, about 3 minutes; cool slightly.

Cut fillo to 6" strips. For each triangle, brush half the fillo with melted butter; fold over other half of fillo to make a strip about 3 inches wide. Brush with butter.

Place 1 teaspoon mushroom mixture at one end of each strip. Fold strip diagonally until triangles are formed. Brush tops with melted butter and place on ungreased baking sheet. Bake in oven at 375 degrees for 20 minutes or until golden brown. Serve warm.

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